Water Hardness Test strips - DCS Products
The Water Hardness test strip is calibrated to measure the water hardness in increments of 0, 50, 125, 250, and 500ppm, and is also calibrated at 0, 3, 7, 15, and 30 grains per gallon. It will be able to determine whether you have hard or soft water in just seconds. The Water Hardness test strip measures water hardness due to calcium carbonate.
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